Author Question: T-tests are used to test a sample mean when the population mean is unknown. Indicate whether the ... (Read 45 times)

strangeaffliction

  • Hero Member
  • *****
  • Posts: 660
t-tests are used to test a sample mean when the population mean is unknown.
 
  Indicate whether the statement is true or false

Question 2

When the population standard deviation is known, z scores are appropriate to test a sample mean.
 
  Indicate whether the statement is true or false



bblaney

  • Sr. Member
  • ****
  • Posts: 323
Answer to Question 1

FALSE

Answer to Question 2

TRUE



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

Colchicine is a highly poisonous alkaloid originally extracted from a type of saffron plant that is used mainly to treat gout.

Did you know?

There are more sensory neurons in the tongue than in any other part of the body.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

For a complete list of videos, visit our video library